Machine for inserting couplings and nipples into hose.



No. 807,738. PATENTED DEO.19,1905. D. K. FULLERTON, A. OUSDAHL & E.KRONBERG. MACHINE FOB. INSBRTING COUPLINGS AND NIPPLES INTO HOSE.

APPLICATION FILED JUNE 29,1905.

' 5 SHEETSSHEET 1.

INVENTORY. PM!!!) K.FULLERTOI1 ADOLPH OUSDRHL ERI K Kflor acm"rnemm-roane 5.

No. 807,738. PATENTED DEC. 19, 1905. D. K. FULLERTON, A. OUSDAHL & E.KRONBERG. MACHINE FOR INSERTING COUPLINGS AND NIPPLES INTO HOSE.

5 SHEETS-$HEET 2.

APPLICATION FILED JUNE 29, 1905.

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APPLICATION FILED JUNE 29,1905. 1

5 SHIIETSSHEET 3.

No. 807,738. PATENTED DEC. 19, 1905. D. K. FULLERTON, A. OUSDAHL & E.KRONBERG.

MACHINE FOR INSERTING COUPLINGS AND NIPPLES INTO HOSE.

APPLICATION IILED'JUNB 29,1905.

5 SHEBTSSHBET 4.

WWW I ERIK KRONE-RC:

No. 807,738. PATENTED DEC. 19, 1905. D. K. FULLERTON, A. OUSDAHL & E.KRONBERG. MACHINE FOR INSEPUTING COUPLINGS AND NIPPLES INTO HOSE.

APPLICATION FILED JUNE 29,1905.

5 SHBETSSHEET 5.

65 ea 5? H55 nwarm'oRs Damp K. FULLERTON wlTnassafi 11 ADOLPH OUSDHHL WWERICK KRO/IBERG THE! R HTTO RH EYE,

DAVID K. FULLERTON,

ADOLPH OUSDAHL, AND ERICK KRONBERG, OF BRAINERD, MINNESOTA.

MACHINE FOR INSERTING COUPLINGS AND NIPPLES INTO HOSE- Specification ofLetters Patent.

Patented Dec. 19, 1905.

Application filed June 29, 1905- Serial No. 267,530-

1'0 al/ whom, it 711 017. concern:

Be it known that we, DAVID K. FULLERTON, ADoLPH OUSDAHL, and ERICKKRoNBERe, of Brainerd, Crow Wing county, Minnesota, have inventedcertain new and. useful Improvements in Machines for Inserting Couplingsand Nipples into Hose, of which the following is a specification.

The object of our invention is to provide a machine for automaticallyand expeditiously inserting couplings and nipples into the short lengthsof hose used between the cars in an airbrake system.

The invention consists generally in inserting a nipple and couplingsimultaneously into the ends of a hose.

Further, the invention consists in imparting a rotary movement to thehose during the operation of fitting a coupling and nipple therein.

Further, the invention consists in improved means for clamping the hose.

Further, the invention consists in means for locking the coupling andnipple during the operation of inserting them into the ends of therotating hose. I

Further, the invention consists in various constructions andcombinations, all ashereinafter described, and particularly pointed outin the claims.

In the accompanying drawings, forming part of this specification, Figure1 is a front elevation of a machine embodying our invention. Fig. 2 is aplan view of the same. Fig. 3 is a vertical sectional view on the linea; m of Fig. 1. Fig. 4 is a similar view on the line y y of Fig. 1. Fig.5 isa detail sectional view on the line .2 .2 of Fig. 8. Fig. 6 is asimilar view to Fig. 5, showing the position of the rotatingv cylinderand the mechanism carried thereby at the limit of their movement in onedirection. Fig. 7 is a detail sectional view on the line w w of Fig. 5.Fig. 8 is a detail sectional view on the line 1) o of Fig. 5. Fig. 9 isa detail sectional view on the line 0 0 of Fig. 2. Fig. 10 is asectional view on the line a a of Fig. 11. Fig. 11 is a plan view,partially in section, of the nipple-gripping jaws. Fig. 12 is asectional view on the line m an of i Fig. 9.

In the drawings, 2 represents a suitable frame whereon the operatingmechanism is mounted.

3 is a cylindrical casting journaled at each end in brackets 4, arrangedon top of the frame 2 near the middle thereof. The cylinder is open ateach end and is provided with a cenwally-arranged gear 5, which ispreferably cast integral with the cylinder. (See Fig. 5.)

6 is a yoke provided at each end with pivotpins 7, wherein jaws 8 havingcorrugated faces are pivoted and adapted to bear upon the surface of arubber hose 8 inserted into the cyl inder and grip the same during theoperation of inserting the coupling and nipple into the hose. Similarjaws 9 are provided at each end of the cylinder 3 to bear on the undersurface of the hose and aid in holding it securely. Brackets 10 aresecured on the surface of the cylinder near each end thereof and havesprings 11, which engage the ends of the yoke 6 to hold it in place, asindicated in Fig. 5. The yoke, however, can be readily disengaged fromthese springs by pulling it down to the position indicated by dottedlines in Fig. 5. Arms 12 are pivoted at 13 in the brackets 10 and haveends 14, which bear upon blocks 15, a'djustably secured to the yoke 6 bybolts 16, extending through slots 17 in the ends of said yoke and intosaid blocks. Screws 18 are vertically arranged in said blocks and havelower ends to bear on the ends of the yoke. The upper ends of the screws18 are slotted to allow the use of a screw-driver to turn the screws andadjust the blocks vertically, and thereby regulate the tension on thehose when the clamping pressure is applied to the jaws. We prefer toprovide jaws 19 at each end of the cylinder in line with the jaws 8 and9 and connected therewith, respectively, by springs 20. These jaws 19inclose the ends of the rubber hose and allow them to expand when thenipple and coupling are thrust therein. As soon as the expansive forceis released the springs 20 will return thejaws to their normal position.(See Fig. 5.)

Mounted upon the brackets 10 is a dog 21', having a finger 22 extendingsubstantially at right angles therefrom and secured on a pivot 23, whichalso carries an arm 24. (See Figs. 3 and 1.) Dogs 25, having arms 26-and27, are provided near the dog 21 for the purpose hereinafter described.

A vertically-movable rack-bar 28 has teeth to engage the teeth of thegear 5 and is provided on each side with recesses 29, wherein verticallymovable bars 30 are arranged. (See Figs. 5, 6, and 8.) The rack-bar 28has a plate 31 on its rear face that is adapted to slide vertically withsaid bar in guides 32.

The dogs 21 project into the path of the vertically-moving bars to beactuated thereby, and the movement of the dogs 21 will impart acorresponding movement to the arms 245, which engaging the arms 12 willrock them on their pivots and force the jaws 8 down upon the hose andclamp the same securely in the cylinder. (See Figs. 5 and 6.) During theinitial upward movement of the bars 30 the rack-bar will be locked bymeans of a hook device 33, pivoted at 3 1 and engaging the top of thebar and held in engagement therewith by means of a pin 35, provided witha spring 36 and mounted in a bracket 37 (See Figs. 5 and 6.) A yoke 38is carried by the pin and has ends in the path of lugs 39 on the bars30. When, therefore, these bars are raised a predetermined distance, thelugs 39 will contact with said yoke and press the hook 33 away from therack-bar against the tension of the spring 36. After the lugs havepassed the yoke the spring 36 will return the hook 33 to its normalposition and cause it to enter a notch in the rack-bar and support thesaid bar in its raised position. The disengagement of the hook 33 fromthe rack-bar will be timed to occur just before the shoulders 11provided on the bars 30 engage similar shoulders 12 on the rack-bar tolift it vertically. The hose having been locked in. the cylinder by theinitial upward movement of the bars 30, the said cylinder will berotated partially upon the engagement of the rack-bar with the gear 5,the movement of said cylinder being from the position indicated in Fig.5 to that shown in Fig. 6. During this oscillation of the cylinder thedogs 25 will pass beneath pawls 43, which have a limited movement on arod 1 1 and swing sufficiently to allow the dogs 25 to pass beneath themin one direction, but engage the said dogs and tilt the same upon thereturn movement of the cylinder. Fingers 26 normally lie beneath thedogs 25, and consequently when the dogs 25 engage the pawls 13 and areoscillated thereby a corresponding movement will be imparted to the dogs21 and the arms 24 to release the arms 12 and allow their springs 12 toreturn them to their normal position and relieve the pressure on thesection of hose.

To reciprocate the bars 28 and 30 we prefer to provide an air-cylinder45, having its piston-rod 16 connected with one end of an oscillatingbar 47, whose opposite end has link connections 48 with the bars 30, thebar 17 being supported intermediate to its ends on the shaft 49.

The manner of admitting air to the cylinder and controlling the pressurethereof forms no part of our present invention and need not be describedin detail herein.

In the foregoing part of the specification we have described themechanism for clamping the hose and imparting a rotary movement thereto.We will now proceed to describe the mechanism for clamping the nipple 56and coupling 56 and inserting them into the ends of the hose during therotary movement thereof. The mechanism for clamping the coupling andadvancing it into the hose is substantially the same as the mechanismfor operating the nipple, and except in the general view, Fig. 1, wehave thought it unnecessary to illustrate and describe more than one ofthese mechanisms.

Upon each end of the frame 2 we provide casings 50, and referringparticularly to the nipple-operating mechanism, 51 represents a carriagearranged to slide horizontally in guides 52 within the said casing andcarrying arms 53, pivoted at 54 and provided with jaws 55, between whichthe nipple 56 is gripped and held. Levers 57 are loosely mounted on thepivots 5 1 and have ends adapted to engage pins 58, carried by the arms53 and held toward the levers 57 with a yielding pressure by springs 59.The levers 57 are pivotally connected with one another at one end bytoggle-links 60. When these links are straightened, the levers will beseparated to force the jaws 55 together, and when the toggle-joint isbroken the arms 53 will be oscillated by means of a spring 61 and thejaws separated and the levers 57 swung toward each other. (See Figs. 2and 11.) The links 60 are pivoted in a block 62, that is slidable on thecarriage 51 between guides 63. A lever 64 is pivoted on themachine-frame and provided at its upper end with a head 65 to engage theblock 62 and straighten the toggle-links. The lower end of the lever 6 1projects through the top of the machine-frame and is attached to aspring 66, which normally holds the said lever in a retracted position.A reciprocating rod 67 is mounted in guides in said frame and engagesthe lower end of the lever 6A to oscillate the same. A rod 67 has a linkconnection 68 with a bell-crank 69, having an arm which lies in the pathof the dog 70 on the contiguous vertically-reciprocating bar 30. When,therefore, this bar is raised, the bell-crank 69 will be oscillated toproject the rod 67 against the lever 64: and oscillate the same tostraighten the toggle and close the nipple-clamping jaws. The carriage51 has a link connection 71 with a bell-crank lever 72, pivoted on themachine-frame and connected by a rod 73 with the vertically-movablerack-bar 28. When this rack-bar ascends, the lever 72 will be oscillatedand the carriage moved toward the end of the hose, which simultaneouslyis given a rotary movement and is held securely to receive theapproaching nipple. A lever 74 is mounted on the said carriage and has ahead 75 to engage the toggle-links and break the joint. A spring 76holds the said lever toward said togglelinks with a yielding tension,and a stop 77, provided on the frame of the machine, is adapted toengage the lower'end of said lever and swing the same on its pivot andput the spring 76 under suflicient tension to cause the unlocking orbreaking of the toggle joint when the lever 74 returns to its normalposition. (See Figs. 9 and 10.) The stop 77, by means of a slot 78 andbolts 79, is adjustable to allow the operation of the lever 74 to beproperly timed. A set-screw 80 engages the block 77 and permits theconvenient adjustment of the same. The lever 81 is provided with a fork82 to support one end of the nipple. An arm 83 on said lever projectsinto the path of the carriage 51 and is yieldingly held by a spring 84.As soon as the carriage begins its horizontal movement the lever 81 willbe oscillated and the fork 82 swung down away from the *nipple to allowits end to be inserted into the hose. As soon as the carriage returns toits normal position the spring 84 will lift the lever 81. (See Figs. 9and 10.)

The following is a brief description of the operation of the machine:The yoke is first removed to expose the socket in the cylinder and asection of rubber hose placed'in the socket. The yoke is then insertedand swung up beneath the springs 11, and air is then admitted to thecylinder and the upward movement of the bars 30 will begin, and duringtheir initial movement thejaws carried by the yoke will clamp the hoseand be securely locked in' their clamped position by the arms 12. Assoon as the hose is clamped the rackbar will engage thegear 5 and therotary movement of the cylinder will begin. As soon as the rack-barbegins its upward movement the carriages supporting the nipple andcoupling will be moved toward the ends of the hose, the nipple andcoupling having been previously clamped on said carriages by mechanismoperated upon the initial movement of the bars 30. The nipple andcoupling will enter the ends of the hose during its rotary movement andwill be snugly fitted therein by the time the hose and cylinder havereached the limit of their movement. As the cylinder re-' turns to itsnormal position the arms 12 will be unlocked and the yoke released toallow the removal of the hose from the cylinder.

We claim as our invention- 1. The combination, with means for clampingand rotating a section of hose, of meansforsimultaneouslyinsertinganipple and coupling into the ends of saidhose during its rotary movement.

2. The combination, with means for clamping a hose and imparting arotary movement thereto, of means for inserting a nipple into the end ofsaid hose during such movement.

3. The combination, with a cylinder, of means for clamping a section ofhose therein, means for imparting a rotary movement to said cylinder,and means for simultaneously inserting a coupling and nipple into theends of said hose during its rotary movement.

4. The combination, with a cylinder adapted to receive a section of hoseand provided with clamping-jaws, of means for locking said jaws inengagement with said hose, means for imparting a rotary movement to saidcylinder and hose, means for inserting a nipple into the end of saidhose during its rotary movement, substantially as described.

5. The combination, with a cylinder adapted to receive a section ofrubber hose, of jaws mounted in said cylinder, said jaws being providedwith spring-pressed extensions to inclose the end of the hose and allowthe same to be expanded.

6. The combination, with a cylinder having a socket to receive a sectionof hose, of a removable yoke provided with jaws adapted to fit into saidsocket and clamp said hose therein, pivoted arms arranged to engage saidyoke and lock said jaws in their clamped position, and means forinserting a nipple and coupling into the ends of said hose,substantially as described.

7. The combination, with a cylinder provided with a gear and adapted toreceive a section of hose, of clamping-jaws, arms arranged to lock thesame in engagement with said hose, vertically-movable bars, mechanismoperated by the initial upward movement of said bars for operating saidarms to lock said jaws, a vertically-movable rack-bar arranged to engagesaid gear and actuated by the final movement .of said bars for impartinga partial rotary movement to said cylinder, and mechanism for insertinga nipple and coupling into the ends of the hose during such movement,substantially as described.

8. The combination, with acylinder provided with a gear and adapted toreceive a section of hose, of clamping-jaws, arms arranged to lock saidjaws in engagement with said hose, reciprocating bars, mechanismarranged to actuate said arms and lock said jaws during the finalmovement of said bars, a rackbar arranged to be operated during thefinal movement of said bars to engage said gear and impart a partialrotary movement to said cylinder, means for inserting a nipple into theend of said hose during its rotary movement, and mechanism for unlockingsaid arms and releasing said jaws during the return movement of saidcylinder, substantially as described.

9. The combination, with a cylinder adapted to receive a section ofhose, of jaws arranged to clamp the hose in said cylinder, mechanism forlocking said jaws in their clamping position, reciprocating barsarranged to actuate said locking mechanism, a fluid-pressure cylinderhaving its piston connected with said bars, and means for inserting anipple and coupling into the ends of said hose, substantially asdescribed.

10. The combination,with means forclamprocating carriages provided ateach end of IIO & I v 807,738

said clamping means, jaws mounted on said carriages and adapted to clampa coupling and a nipple, and mechanism for moving said carriages towardsaid hose clamping means to insert said coupling and nipple into theends of the hose during its rotary movement, substantially as described.I

11. The combination, with means for supporting and clamping asection ofhose, of reciprocating carriages, jaws mounted thereon and adapted toclamp a coupling and a nipple, a toggle mechanism for locking said jawsin their clamped position, means for moving said carriages toward saidhose clamping means and inserting the coupling and nipple into the endsof said hose, and means for releasing said toggle mechanism to unlocksaid coupling and nipple-clamping jaws during the final movement of saidcarriages.

12. The combination,with means for clamping and rotating a section ofrubber hose, of reciprocating carriages provided at each end of saidclamping means, jaws mounted on said carriages, means actuated by theoperation of said hose-clamping means for operating said jaws, andmechanism operated by said hoserotating means for moving said carriagestoward each other to insert the coupling and nipple into the ends of thehose, substantially as described.

13. The combination, with a cylinder, of means for clamping a section ofhose therein, means for imparting a rotary movement to said cylinder andmeans for inserting a coupling into the end of said hose during itsrotary movement.

14:. The combination, with jaws having yielding extensions adapted toinclose the end of a hose and allow same to beexpanded, and means forinserting a coupling into said end, substantially as described.

15. The combination, with means for clamping a section of flexible hoseand imparting a rotary movement thereto. of yielding extensions providedon said clamping means, and means for inserting a coupling into the endof the hose inclosed by said extensions, substantially as described.

16. The combination, with a cylinder provided with a gear and adapted toreceive a section of hose, of means for locking the hose in saidcylinder, a rack-bar arranged to engage said gear and impart a rotarymovement to said cylinder, and mechanism for inserting a coupling intothe end of the hose during said movement, substantially as described.

17 The combination, with a cylinder provided with a gear and adapted toreceive a section of hose, of means for locking the hose in saidcylinder, a rack-bar arranged to engage said gear and impart a rotarymovement to said cylinder, mechanism for inserting a coupling into theend of the hose during the rotary movement of said cylinder, and meansfor unlocking or releasing the hose during its return movement,substantially as described.

18. The combinati0n,with a cylinder having asocket to receive asectionof hose, of a removableyoke having means to enter said socket and clampthe hose therein, means for imparting a partial rotary movement to saidcylinder, and means for inserting a coupling into the end of said hoseduring such rotary movement, substantially as described.

19. Thecombination,withasupportadapted to receive a section of hose andprovided with a gear, of a hose-clamping means, movable bars, mechanismoperated by the initial movement of said bars to actuate said clampingmeans and lock said hose, a rack-bar actuated by the final movement ofsaid first-named bars to engage said gear and impart a partial rotarymovement to said support, and mechanism for inserting a coupling intothe end of the hose during such movement, substantially as described.

20. The combination, with jaws arranged to clamp a section o'l hose, ofmechanism for locking said jaws in theirclarnping position, means foractuating said locking mechanism, an aircylinder connected with saidactuating means, means operated by the final movement of said actuatingmeans for imparting a partial rotary movement to said jaws, and meansfor inserting a coupling into the end of the hose during such movement,substantially as described.

21. The combination, with means for clamping and rotating a section ofhose, of a reciprocating'carriage, a coupling-clamping means mounted onsaid carriage, and mechanism for moving said carriage toward saidhose-clamping means to insert said coupling into the end of the hose,substantially as described.

22. The combination, with a hose-support and a coupling-support, ofmeans for rotating one of said supports, and means for moving one ofsaid supports toward the other one to insert the coupling into the hoseand a fluidpressure-actuated mechanism for operating said supportssuccessively, substantially as described.

23. The combination, with a hose-support, and nipple and couplingsupports provided upon opposite sides thereof, of means for rotatingsaid hose-support, and means for moving said nipple and couplingsupport-s toward said hose-support to insert the nipple and couplinginto the ends of the hose, substantially as described.

In witness whereof we have hereunto set our hands this 21st day of June.1905.

DAVID K. FULLERTON. A DOLPH OUSDAHL. ERICK KRONBERG. -Witnesses:

OLAUD O. KYLE, WM. W. SMYTH, W. J. HERREMAN.

